"Kim Kardashian West and Kanye West welcomed the arrival of their son this morning," the statement read.

"Mother and son are doing well."

It's the celebrity couple's second child, their daughter North West was born in June 2013.

The couple revealed the gender of their new arrival on Twitter on Father's Day.

While the pair has not yet revealed a name, South West has apparently been ruled out, presumable as has East West if Kardashian-West's answer during an interview on National Public Radio is anything to go by.